A variety of proteins link actin to membranes.A ________ protein is used to link actin to the ________ membrane.

Question

Quizplus · Accepted Answer

The question is asking for a protein that links actin to a membrane, and the choices provide various possible proteins and membrane types. Of these choices, the only combination that makes sense is A) linker protein and plasma membrane. Linker proteins are a diverse group of proteins that can link actin filaments to various cellular structures, including the plasma membrane. Spectrin is a cytoskeletal protein that is primarily associated with the red blood cell membrane, not the ER. Ankyrin is a protein that links the cytoskeleton to the plasma membrane, but it is not typically associated with lysosomes. Band 4.1 is a cytoskeletal protein that can associate with various membrane types, but the specific membrane type is not specified in the question. Thus, the best choice is A) linker protein and plasma membrane.

A Variety of Proteins Link Actin to Membranes